Flaming Petal website shares how to make a terrace garden beds on a sloping hillside.
Many gardeners find it a challenge to grow on land that has a steep slope but it is possible.
I would suggest adding a stairway walkway on one side.
Click here to read how to do this project yourself:
Here is another idea: http://www.diychatroom.com/f16/hillside-landscaping-156598/